Mouthpiece for a spirometer



FIG. 1 is a perspective view showing our new design of the mouthpiece for a spirometer:

FIG. 2 is a front view of the mouthpiece for a spirometer of FIG. 1;

FIG. 3 is a rear view of the mouthpiece for a spirometer of FIG. 1;

FIG. 4 is a left side view of the mouthpiece for a spirometer of FIG. 1 showing a tab portion in an alternative position, the right side being a mirror image;

FIG. 5 is a left side view of the mouthpiece for a spirometer of FIG. 1, the right side being a mirror image thereof;

FIG. 6 is a top view of the mouthpiece for a spirometer of FIG. 1;

FIG. 7 is a bottom view of the mouthpiece for a spirometer of FIG. 1;

FIG. 8 is a cross-section view of the mouthpiece for a spirometer of FIG. 1, taken along lines 8—8 of FIG. 2;

FIG. 9 is a cross-section view of the mouthpiece for a spirometer of FIG. 1, taken along lines 9—9 of FIG. 2; and,

FIG. 10 is a cross-section view of the mouthpiece for a spirometer of FIG. 1, taken along lines 10—10 of FIG. 2.

The dashed lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a “mouthpiece for a Spirometer,” as shown and described. 